Improvement in submarine drilling  apparatus



niiet I lteres stent chiites.

SAMUEL LEWIS, or WILLI'AIgsBUR'o, NE'WfYoRK'.

Lettere Patent No. 103,899, dated June?, 1870.

IMPROVEMENT IN SUBMARINE DRILLING- APPARATUS,

MM )I The Echeduc referred to rrthese Letters Patent and making part.' of the same.

lo all chem it may concern Bc it known that I, SAMUEL Lnwrs, of Williams burg, in tlrs county ot' Kings and State of New York,

invented anew and useful Improvement in Submarine Drilling Apparatus; and I do hereby declare that the ibilowing is a full, clear, and cxaetdcscription thereof, which will enable others skilled in the art to make and Ause the same, reference being had to the accompanying drawing forming part of this specification.

The figure is a detail sectional view illustrating rrry through which the spuds or vertical anchors B are passed, by and upon which spuds, the said boat'or' platform is supported.

The spuds .B pass down through a guide-hole in the deck or other part of the boat, and through a well-hole in the lower part of said boat.

Upon the opposite sides of the spuds B are formed racktceth, as shown in the drawing, into which the teeth ofthe pawls C, pivotcd toor connected with the cross-beam or head D, and the toothed pawls E, pivoted to or connected with the cross-beam F, fit.

G are strong lrollow cylinders, the lower ends of which arc securely connected with the frame-work A of the boat, and the upper ends of which are securely connected with the ends of the cross-beam or head D, through which they pass.

H are pistonrods working through the 4stufiingboxes in the upper heads of. the cylinders G, and t0 the lower ends ot' which are attached pistons, working in the said cylinders.

The upper ends ot' the piston-rods H are securely attached to the ends ofthe cross-bearn or head F.

I are small pipes, leading into the ripper parts of the cylinders-'G above thepistons, and

J are small pipes, leading intoLt-lre lower parts of the cylinders G below said pistons.

The pipes I and 'J are both connected with a hydraulic pump and with the water-cistern, so that the lower pipes may serve as discharge-pipes when the water is being forced through the upper pipes I into the upperrparts of the cylinders G, and so that the upper pipes I may serve as discharge-pipes when the water is being forced through the lower pipes J into the lower parts ot said cylinders below the said pistons.

lhc vpawls Gand-E may be operated to throw them into and ont of gear with the spuds IS, by levers or other convenient means.'

In rising the apparatus, supposingthe boat, to be" iioating upon the water in the proper position andthe spuds to be lowered till their lowereuds rest upon the solid bottom, to raise the boat so that,it nray be unaffected by the rise and fall ofthe tide, the pawls E are thrown orrtof gear with the spndsB and the water-forced into the lower tons, raising the cross-head F. The pawls E ar'e then thrown into gear with thespuds B, and the`water is forced into the upper parts of the cylinders G, forcing or tending to force them down, but, as they are con nected with the crosshead F, and that with the spuds B by the pawls E, they cannot -move downward, and the cylinders G with them.

When the strokehas been completed, the pawls G vare thrown into gear with tlrespuds B to hold the boat suspended, the pawls E are thrown ont of gear with the spuds B, and the water is again forced into .the lower parts of the cylinder to again raise the crosshead F, and so on until the boat or platform A has been raised to the desired height. By reversing this operation, the boat may be lowered to again rest upon the water.

Having thus described my invention,

I claim as new and desire to secure by Letters' Patent- 1. The combination of two sets of pawls O E with the spuds or vertical anchors B,- tbrLalruatelLgrpwf raiglanilowered, substantially as'lrerein showiand described.

2. The combination of two or more pistons and piston-rods H and cylinders G; provided with ingress alrd discharge-pipes I J, with the boat or platform A and spuds or vertical anchors B, substantially as herein shown and described, and for the purpose set forth.

' 3. 'Ilre combination of the cylinders G, provided with ingress and discharge-pipes'l J, piston and piston-rods H, cross-ireads or beams D and-F, and pawls O and E, -with the boat or platform A'and spuds or vertical anchors B, substantially as hcnein shown and described, and for the purpose set forth.

The above specification of my invention signed by me this 11th day ot' September, 1869.

Witnesses: SAMUEL LEWIS.'

' Gno.W. MABEE,

J AMES T. GRAHAM.

part of the cylinders G below'the p isare made to lrise, carrying the boat 

